Phosphorus plays crucial roles in biology and sustainability. It's particularly important in crop nutrition. 4R practices for phosphorus management have great potential to improve both crop yields and ...
22 May 2015United States Corn: Fertilizer Use Efficiency Doubles between 1980 and 2014Fertilizer use efficiency has many definitions. One of the most useful is "partial factor productivity" (PFP). The following four charts show trends for PFP for nitrogen (N), phosphorus (P), and potas ...
06 Jan 2014Plant Nutrition TodaySelected articles for the Northeastern United States, and Eastern Canada
04 Dec 2013Phosphorus Balance Trends on Agricultural Soils of the Lake Erie Drainage BasinLaura Lindsey (Bast), Robert Mullen, Ivan O’Halloran, Darryl Warncke, and Tom Bruulsema
28 Nov 2013Reducing Loss of Fertilizer Phosphorus to Lake Erie with the 4Rsby Tom Bruulsema, Robert Mullen, Ivan O'Halloran, and Harold Watters.
06 Dec 2012Fertilizing Crops to Improve Human Health: a Scientific ReviewTom Bruulsema, Patrick Heffer, Ross Welch, Ismail Cakmak, and Kevin Moran
05 Dec 2012Global Crop Intensification Lessens Greenhouse Gas EmissionsCliff Snyder, Tom Bruulsema, Valter Casarin, Fang Chen, Raúl Jaramillo, Tom Jensen, Robert Mikkelsen, Rob Norton, T. Satyanarayana, and Shihua Tu
05 Dec 2012The Fertility of North American Soils, 2010Paul E. Fixen, Tom W. Bruulsema, Tom L. Jensen, Robert Mikkelsen, T. Scott Murrell, Steve B. Phillips, Quentin Rund, and W. Mike Stewart
05 Dec 2012Temporal Variability of Crop Response to FertilizerRobert Mullen, Greg LaBarge, and Keith Diedrick
05 Dec 2012How Potassium Nutrition Can Suppress Soybean AphidsTom Bruulsema, Christina DiFonzo, and Claudio Gratton
01 Jan 2008Best Management for Fertilizers on Northeastern Dairy FarmsBy Tom W. Bruulsema and Quirine Ketterings
Selected articles for the Northeastern United States and Eastern Canada, 2002-2006